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Add soft line home

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This commit is contained in:
Sasha Koshka 2024-09-04 12:40:46 -04:00
parent 9079aca993
commit 1c38ed2d87
1 changed files with 14 additions and 3 deletions
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17
internal/system/textbox.go
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@ -405,7 +405,7 @@ func (this *textBox) handleKeyDown (key input.Key, numberPad bool) bool {
switch { switch {
case key == input.KeyHome || (modifiers.Alt && key == input.KeyLeft): case key == input.KeyHome || (modifiers.Alt && key == input.KeyLeft):
dot.End = lineHome(this.runes, dot.End) dot.End = lineHomeSoft(this.runes, dot.End)
if !sel { dot.Start = dot.End } if !sel { dot.Start = dot.End }
this.Select(dot) this.Select(dot)
return true return true
@ -618,8 +618,6 @@ func nextParagraph (text []rune, index int) int {
return index return index
} }
// TODO: make functions on top of these that support soft home/end
func lineHome (text []rune, index int) int { func lineHome (text []rune, index int) int {
liminal := index < len(text) && text[index] == '\n' liminal := index < len(text) && text[index] == '\n'
if index >= len(text) { index = len(text) - 1 } if index >= len(text) { index = len(text) - 1 }
@ -633,6 +631,19 @@ func lineHome (text []rune, index int) int {
return 0 return 0
} }
func lineHomeSoft (text []rune, index int) int {
home := lineHome(text, index)
start := home
for start < len(text) && unicode.IsSpace(text[start]) {
start ++
}
if index == start {
return home
} else {
return start
}
}
func lineEnd (text []rune, index int) int { func lineEnd (text []rune, index int) int {
for ; index < len(text); index ++ { for ; index < len(text); index ++ {
char := text[index] char := text[index]